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Renesas R5F104AAASP#X0
- Part No.:
- R5F104AAASP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F104AAASP#X0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,541
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Product details
Overview
R5F104AAASP#X0 from Renesas Electronics is a 16-bit RL78/G14 microcontroller with 16 KB flash memory, 2.5 KB RAM, and 30-pin LSSOP package (0.65 mm pitch), operating from 1.6 V to 5.5 V. It delivers 44 DMIPS at 32 MHz, features ultra-low-power operation (66 μA/MHz active, 0.60 μA in RTC+LVD mode), and integrates 10-bit ADC (8 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F104AAASP#X0 datasheet, R5F104AAASP#X0 pinout, R5F104AAASP#X0 application, or R5F104AAASP#X0 equivalent, key selection criteria include its 30-pin LSSOP footprint, 16 KB code flash capacity, -40°C to +85°C consumer-grade temperature range (A-suffix), integrated low-voltage detector with 14-level interrupt/reset, and support for background data flash rewriting (1M write cycles).
Technical Context
The R5F104AAASP#X0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It uses a single-supply 1.6–5.5 V rail and supports HALT/STOP/SNOOZE low-power modes with on-chip POR and 14-level LVD.
Peripheral integration includes Timer Array Unit (TAU) with up to 8 channels, 1-channel 12-bit interval timer, 1-channel RTC with calendar/alarm, 1-channel watchdog timer, and event-link controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS for deterministic real-time control loops |
| Flash Memory | 16 KB code flash - sufficient for compact firmware with bootloader and safety checks |
| Data Flash | 4 KB - supports 1,000,000 write cycles at 1.8–5.5 V for parameter storage with BGO |
| RAM Size | 2.5 KB - accommodates stack, heap, and real-time buffers for sensor fusion tasks |
| ADC Resolution & Channels | 10-bit resolution, 8 analog inputs - enables direct connection to thermistors, potentiometers, and voltage dividers |
| Supply Voltage Range | 1.6 V to 5.5 V - allows direct Li-ion (3.0–4.2 V), 3.3 V, or 5 V system integration without regulators |
Pinout & Package
Package: 30-pin LSSOP (7.62 mm × 3.94 mm, 0.65 mm pitch), JEDEC MS-012AC compliant, surface-mount, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/ANI17/TI00/TxD1/TRGCLKA/(TRJO0) | Multi-function I/O | Primary UART1 TX, timer input, analog input channel 17, or trace clock - configurable via PIOR registers |
| P01/ANI16/TO00/RxD1/TRGCLKB/TRJIO0 | Multi-function I/O | Primary UART1 RX, timer output, analog input channel 16, or debug interface - supports simultaneous analog capture and serial comms |
| P10/SCK11/SCL11/TRDIOD1 | SPI/I²C/Debug | Shared SCK (SPI) or SCL (I²C) pin - enables dual-interface communication with sensors or EEPROMs using same physical line |
| P12/SO11/TRDIOB1/IVREF1 | SPI Output / Ref | SPI data output or internal voltage reference - selectable for precision ADC biasing or peripheral clocking |
| RESET | Active-low Reset | Asynchronous reset input with internal pull-up - ensures reliable initialization after power-on or brownout |
| VDD / VSS | Power Rails | Dual dedicated supply pins - decoupling capacitor placement near VDD/VSS minimizes noise in analog and digital domains |
| REGC | Regulator Bypass | Connect 0.47–1 μF capacitor to VSS - stabilizes internal LDO for consistent low-power mode behavior |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 66 μA/MHz active current and 0.60 μA RTC+LVD retention mode - extends battery life in wireless sensor endpoints beyond 5 years |
| On-Chip Debug & Self-Programming | Integrated on-chip debug interface and boot-swap flash shield window - enables field firmware updates without external programmers |
| Background Data Flash Rewrite | BGO allows CPU to execute from flash while rewriting 4 KB data flash - eliminates latency during parameter logging or calibration |
| Flexible Clock System | High-accuracy (±1.0%) on-chip oscillator from 1–64 MHz - removes need for external crystal in cost-sensitive applications |
| Event Link Controller (ELC) | Hardware routing of 19–26 event signals between peripherals - offloads CPU from ISR overhead in time-critical signal chains |
Applications
| Smart Thermostat Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone HVAC controller with ambient temperature/humidity sensing, display, and relay actuation. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, PID computation, UART-based display updates, and GPIO-driven relays. Use Value: 10-bit ADC with internal reference enables accurate thermistor readings; ultra-low STOP mode current (<1 μA) preserves coin-cell battery for >3 years. |
Use Scenario: Wireless vibration/temperature node in predictive maintenance systems, transmitting data via UART-to-LoRa module. IC Role / Device Role / Timing Role: Sensor aggregator and protocol translator - reads analog sensors, timestamps data via RTC, formats packets, and drives UART interface. Use Value: RTC with calendar/alarm wakes MCU only for scheduled measurements; ELC triggers ADC→DMA→UART transfer chain without CPU wake-up. |
| Portable Medical Monitor | Home Appliance UI Controller |
|
Use Scenario: Battery-powered pulse oximeter with LED drivers, photodiode amplifier, and OLED display interface. IC Role / Device Role / Timing Role: Signal acquisition controller - synchronizes LED pulsing (via timer PWM), samples photodiode (ADC), and manages display refresh (SPI). Use Value: 32 MHz max frequency ensures sub-100 μs ADC conversion; 16 KB flash hosts medical-grade algorithm and BLE stack overlay. |
Use Scenario: Keypad and LED status controller in washing machine or microwave, interfacing with main MCU via UART. IC Role / Device Role / Timing Role: Dedicated UI co-processor handling key scan, buzzer tone generation (PCLBUZ), LED dimming, and fault reporting. Use Value: On-chip PCLBUZ and 8-channel ADC simplify external component count; LSSOP package enables compact PCB layout under front panel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BAANA#U0 | 32-pin HWQFN, 16 KB flash, 2.5 KB RAM, same core/peripherals - differs in package (HWQFN vs LSSOP) and packaging spec (#U0 vs #X0) | Preferred for space-constrained PCBs requiring thermal pad grounding; not drop-in compatible due to different pinout and land pattern | Select when board layout prioritizes density over hand-solderability or when exposed die pad improves thermal performance. |
| R5F104ADASP#X0 | 30-pin LSSOP, 32 KB flash, 4 KB RAM, identical package/pinout - adds 16 KB flash and 1.5 KB RAM over R5F104AAASP#X0 | Suitable for firmware with larger RTOS footprint or future feature expansion; same PCB layout and debug interface | Choose when firmware growth headroom is required without redesigning the board or changing toolchain configuration. |
Compared with R5F104BAANA#U0, R5F104AAASP#X0 offers easier manual assembly and lower assembly cost in LSSOP, while R5F104ADASP#X0 provides immediate scalability within the same footprint - both alternatives retain identical peripheral sets and low-power characteristics.
Availability
R5F104AAASP#X0 is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial control panels, and portable medical monitors requiring stable component supply across long production lifecycles.
Supply support for R5F104AAASP#X0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line targets cost-sensitive, ultra-low-power general-purpose applications - designed to replace legacy 8-bit MCUs with enhanced performance, integrated peripherals, and robust flash reliability.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104AAASP#X0?
The R5F104AAASP#X0 operates at up to 32 MHz and delivers 44 DMIPS performance. This metric reflects its RL78 CPU core's efficiency in executing compiled C code under typical conditions, validated per Renesas' benchmark methodology using the EEMBC CoreMark suite. The R5F104AAASP#X0 achieves this with its 3-stage pipeline and optimized instruction set, making it suitable for real-time control tasks where deterministic timing matters.
Does the R5F104AAASP#X0 support in-system programming and debugging without external tools?
Yes, the R5F104AAASP#X0 includes an on-chip debug interface compatible with Renesas E2 studio and CS+ IDEs. It supports full JTAG/SW-DP debugging, flash programming, and real-time variable monitoring through its dedicated TOOL0 and TRJIO0 pins. No external debugger hardware is required for development - only a USB-to-JTAG adapter (e.g., E2 Lite) and standard SWD cable are needed to program and debug the R5F104AAASP#X0.
What are the supported low-power modes and their typical current consumption for the R5F104AAASP#X0?
The R5F104AAASP#X0 supports HALT, STOP, and SNOOZE modes. In HALT mode (CPU stopped, peripherals active), current is ~66 μA/MHz scaled to clock frequency. In STOP mode (all clocks halted except RTC/LVD), consumption drops to 0.60 μA. SNOOZE mode allows selected peripherals (e.g., ADC, UART) to operate autonomously while CPU sleeps - ideal for periodic sensor polling with minimal wake-up latency.
Can the R5F104AAASP#X0 perform data flash writes while executing code from main flash memory?
Yes, the R5F104AAASP#X0 supports Background Operation (BGO) for data flash. While the CPU executes instructions from main flash, the data flash controller can rewrite its 4 KB block concurrently. This enables seamless parameter logging, calibration updates, or firmware state saving without interrupting real-time tasks - critical for applications like black-box recording or adaptive control tuning.
What is the analog input voltage range and reference options for the ADC in the R5F104AAASP#X0?
The R5F104AAASP#X0 features an 8-channel, 10-bit SAR ADC with input range of 0 V to VDD. It supports two reference sources: external VDD or internal 1.45 V reference (AVREFP/AVREFM pins). The internal reference enables stable measurements independent of supply fluctuations - especially valuable in battery-operated systems where VDD may sag during load transients.
R5F104AAASP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104AAASP#X0 FAQ
1.How can I place an order for R5F104AAASP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104AAASP#X0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F104AAASP#X0 reliable?
The price and inventory of R5F104AAASP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104AAASP#X0 is usually 5 days.
3.What payment methods are accepted for R5F104AAASP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104AAASP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104AAASP#X0?
R5F104AAASP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104AAASP#X0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F104AAASP#X0?
For technical support, including R5F104AAASP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104AAASP#X0 requirements.
6.How does Aetrix verify that R5F104AAASP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104AAASP#X0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F104AAASP#X0 meets industry standards.
7.What is the process for return or replacement of R5F104AAASP#X0?
All R5F104AAASP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104AAASP#X0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F104AAASP#X0 part is unused and in its original packaging.
Return procedure for R5F104AAASP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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